i see that. is easy if i use a lot of functions that use const String& in passed as parameters, but if i have functions that returns object on the stack, without returning references nor pointers, i have to manually rewrite it. as the RegularExpression function that were running me on troubles, making it returns a newly created asString object instead of just returning the object on the stack. for example i registered functions to work with URLs, that have a function like

class URL {
public:
// ...
const String getContentAsString();
};

or just my String

String substring( int start, int end );

so i should manage this type of functions to be returning a asString* instead, so i have to write wrapper classes for this type of functions, and that's the 80% of the total number of them, cause i don't work too much with pointers in such cases (safer). there is any workaround ?

ok lord, but what if i register String instead of asString ? then returning a String on the stack is working or i should have declared it returning a newly allocated object ?